Oxidation state of C in CO2 is _________1 mark+4-4-2+2Q2Oxidation state of S in H2SO4 is _____________1 mark-6-1+6+4Q3State the oxidation state of chlorine in NaClO1 mark+1-1+2-2Q4In the given equation4Fe + 3O2→ 2Fe2O31 markFe is getting reduced Fe is getting oxidised O is getting reducedO is getting oxidisedQ5In the given equation determine which is getting reduced Cl2 + 2NaBr→ 2NaCl + Br21 markClBrNaNoneQ6State the oxidation state of Chromium(Cr) in Cr2O31 mark-2+2+3-3Q7Select the correct answer for the given reaction 2Ca + O2 →2CaO1 markCa is oxidised from 0 to +2Ca is oxidised from +2 to 0Ca is reduced from +2 to 0Ca is reduced from 0 to +2Q8In the given equation Mg + 2HCl →MgCl2 + H21 markMg is getting reducedMg is getting oxidised Cl is getting oxidised H is getting oxidisedQ9Determine the oxidation state of nitrogen in NH31 mark-3+3+1-Q10State the oxidation state of manganese in KMnO41 mark+1+7-7-1
Question
Oxidation state of C in CO2 is _________1 mark+4-4-2+2Q2Oxidation state of S in H2SO4 is _____________1 mark-6-1+6+4Q3State the oxidation state of chlorine in NaClO1 mark+1-1+2-2Q4In the given equation4Fe + 3O2→ 2Fe2O31 markFe is getting reduced Fe is getting oxidised O is getting reducedO is getting oxidisedQ5In the given equation determine which is getting reduced Cl2 + 2NaBr→ 2NaCl + Br21 markClBrNaNoneQ6State the oxidation state of Chromium(Cr) in Cr2O31 mark-2+2+3-3Q7Select the correct answer for the given reaction 2Ca + O2 →2CaO1 markCa is oxidised from 0 to +2Ca is oxidised from +2 to 0Ca is reduced from +2 to 0Ca is reduced from 0 to +2Q8In the given equation Mg + 2HCl →MgCl2 + H21 markMg is getting reducedMg is getting oxidised Cl is getting oxidised H is getting oxidisedQ9Determine the oxidation state of nitrogen in NH31 mark-3+3+1-Q10State the oxidation state of manganese in KMnO41 mark+1+7-7-1
Solution
Q1: The oxidation state of C in CO2 is +4.
Q2: The oxidation state of S in H2SO4 is +6.
Q3: The oxidation state of chlorine in NaClO is +1.
Q4: In the given equation 4Fe + 3O2→ 2Fe2O3, Fe is getting oxidised and O is getting reduced.
Q5: In the given equation Cl2 + 2NaBr→ 2NaCl + Br2, Br is getting reduced.
Q6: The oxidation state of Chromium(Cr) in Cr2O3 is +3.
Q7: In the given reaction 2Ca + O2 →2CaO, Ca is oxidised from 0 to +2.
Q8: In the given equation Mg + 2HCl →MgCl2 + H2, Mg is getting oxidised.
Q9: The oxidation state of nitrogen in NH3 is -3.
Q10: The oxidation state of manganese in KMnO4 is +7.
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